meters

can someone please tell me if I should be concerned when 2 different meters show 2 different reading,sometimes 15-20 points apart, using the same prick. I'm type 2 and the A1c is satisfactory however in keeping track of my facting sugar I find the reading is all over the chart, so I'm using 2 meters periodially just monitor my situation

5 replies

I have been told that the accuracy of a measurement can change if you use two drops of blood from the same prick. One school says not to use the first drop, since that can be contaminated with sweat and surface dirt; the othe schools says that by the time you get to the second drop, the wound is drying up and you will get an inaccurate reading.

Best I can say is, compare both against labs, or compare the second and third drops of blood (if you can squeeze that many out!), or compare two nearby pricks on the forearm.